Romans were too busy not dying during winter to count those 61 and a quarter extra days… they’d just start the next year on the new moon before the spring equinox.

罗马人冬季时忙得焦头烂额，无法计算出那额外多出61.25天...在第二年春分前，则以第一个新月作为一年开始。

But do you know how scientists calculated that number?

应该是b)860亿个。你道科学家是如何计算出这个数字吗？

Well, other people have figured out how much energy the human brain and that of other species costs, and now that we knew how many neurons each brain was made of, we could do the math.

有些人已经计算出了人类大脑能消耗多少能量，以及其它物种大脑消耗多少能量，而现在，道每个大脑中有多少神经元，可以算一算。

Their research did not estimate the animal's maximum speed but maybe this can help us visualize what that might have looked like.

虽然研究没能计算出霸王最大步行速度，但也许能帮绘制出霸王样。

Second, figure out the size of its orbit.

第二，计算出它轨道大小。

It's possible to calculate the exact probability of going free in all 100 spots.

在 100 个位置中，计算出精确逃脱机率是有可能。

Caldwell and Kamionkowski calculated that the Universe is expanding at an alarming and increasing pace.

考德威尔和卡米奥库斯基计算出宇宙以惊人越来越快速度膨胀。

But computing such a thing is extremely costly.

但是计算出这种效果计算量是十分巨大。

With measurements from their own experiments, Wilbur was able to calculate the correct number.

通过实验测量 ，威尔伯·莱特能够计算出正确数字。

I can measure my steps, my caloric outtake.

可以计算出步数和热量消耗。

And by that, they always compute their relative position to the nest.

通过这些，它总能计算出自己与巢穴相对位置。

The marks allow investigators to work out the speed of impact.

这些标记使调查人员能够计算出撞击速度。

Although I suppose, based on your premise, we could calculate the stress-energy tensor for each.

不过想基于你假设是可以计算出各自应力能量张量。

First, we must determine the maximum velocity achievable without breaking a sweat.

首先，需要计算出在不出汗情况下最快速度是多少。

By comparing the brightness as seen here on Earth with how bright we know each of them should be, we can work out how far away each supernova is. The dimmer its light, the farther away it is.

通过对比在地球上看到亮度和它应有亮度，可以计算出每个超新星距离。光线越暗，距离越远。

Modern radar is highly sophisticated but it largely relies on emitting a signal. By measuring the time taken for the reflected signal to return it is possible to work out the position of an aircraft.

现代雷达极其复杂，但主要还是靠自己发出信号。通过测量被反射信号返回雷达所需时间，就有可能计算出飞行器位置。

So if you're trying to change your ratio, if you're trying to work out your ideal ratio, you only want to change the ratio, once you're really happy with the taste.

所以如果你想改变比例，如果你想计算出你理想比例，你只需要改变到你对那个口感满意比例。

By precisely measuring the difference between the two wavelengths, the temperature of particles that are emitting it -- and thus of the paste as a whole -- can be worked out.

通过精确地测量这两种波长之间差值，可以计算出发射它粒子温度--从而计算出整个糊状物温度。

And what's gonna happen is that we're gonna see that each individual is gonna have to make their calculation of the amount of risk that they want to take in going to indoor dinners and in going to functions.

接下来会发生是，将会看到，每个人都必须计算出自己愿意承担室内就餐或参与社交聚会风险。

The sleep calculator, made by the team at home interiors specialist Hillarys, can work out the time you need to go to bed to make sure you wake up with the spring in your step.

由室内家装公司 Hillarys 研发睡眠计算器可以计算出你需要入睡时间，确保你能轻松起床。